Description

The VT-DTMSA5-433 module is designed as a wireless sub module for wireless communication between devices like controls, POS systems, data collectors etc. It offers several addressing modes and relieves the host systems of wireless-specific task such as checksum calculation, address resolution.

It can be deployed whenever the wireless exchange of data packet between two or more parties is required.

Thanks to its small size and the external SMA antenna connector, the module can easily be installed in existing systems without any external circuits.

Key Features

-GFSK modulation

-Communication distance up to 800 meter

-Supports addressing transparent communication

-Auto add preamble, checksum, address information

-Supports setting mode to configure parameters Channel, Interface

Band Rate, Radio Data Rate, Output Power, Source Address,

Destination Address

-UART interface

-Half Duplex communication, 8N1 format

-3.3V DC Power Supply

-Consumption: Transmit <140mA; Receive <25mA

-Optional Antenna

Application

-Automatic Meter Reading

-Wireless Sensor Network

-Data Collector

-Controls, Remote Controls

-POS Systems

-Building Automation

-Android Controls

Specification

Testing condition:Ta=25°C, VCC=3.3V

Parameter Value Condition/Note

Center Frequency 433MHz Programmable

Modulation GFSK Customize for ASK/FSK/OOK/MSK

Output Power Max: 20dBm Programmable

Sensitivity -110dBm 1.2kbps

Radio Data Rate Max 500kbps Programmable

USB Interface Rate Max 230.4kbps Programmable

Protocol Format 8N1 Programmable

Transmit Current <140mA Depend on output power

Receive Current <25mA

Distance 800 meter Open area; 20dBm; 2.4kbps

Operate Humidity 10%~90%

Operate Temperature -20℃~85℃

Input Voltage 3.3VDC±10% ±100mV

Antenna 50ohm

Size

Note:

1.Noted that higher radio data rate causes of shorter communication disdance.

2.Noted that higher radio data rate causes of lower sensitivity.

3.Noted that lower input voltage causes of lower output power.

4.Noted that the operate temperature out of range -20℃~85℃ will influence the center frequency.

5.Be sure to use a match antenna and mount it in the right way.

6.The environment will influence the communication disdance much.